Lead Java Application Engineer (Java 21, Spring Boot 3, REST API, Agile, Cloud, Databases)

Advertised Category: 
Java
Category Description: 
Information Technology\Java
Level: 
Permanent
Country: 
Slovakia
City: 
Bratislava
50% HO.
Keywords: 
Java 21
Spring Boot 3
Cloud
databases
Agile
SCRUM
JUnit
Microservices
REST API
Salary: 
Base salary for this full-time role is 3,800-6,000 EUR/m. Final salary depends on requirements, scope, complexity and responsibilities of the role, as well as the applicant’s education, qualifications, expertise, skills and experience.

About the Client

We are one of the world’s leading providers of reinsurance, insurance and other forms of insurance-based risk transfer, working to make the world more resilient. We anticipate and manage a wide variety of risks, from natural catastrophes and climate change to cybercrime. Combining experience with creative thinking and cutting-edge expertise, we create new opportunities and solutions for our clients. This is possible thanks to the collaboration of more than 14,000 employees across the world.

About the Role

Join our Database as a Service (DBaaS) team and help evolve a core platform used. We provide secure, stable, and easy-to-use database services with a strong focus on automation and self-service, supporting both private and public cloud environments.

We are looking for a hands-on Lead Java Engineer of any gender who combines strong development skills with the ability to guide technical direction when needed.

This is an individual-contributor technical lead role. You will spend most of your time designing, building, reviewing, and improving code, while taking technical lead on selected features, refactoring efforts, and cross-team initiatives.

This role is suitable for candidates of all genders.

Responsibilities

Engineering & Delivery
- Work with and improve a large existing Java codebase
- Drive incremental refactoring and modernization of legacy components
- Contribute to migration towards Spring Boot-based services
- Design, develop, and maintain services forming the DBaaS platform
- Participate in code reviews and maintain high code quality
- Troubleshoot issues and contribute to production support
- Collaborate with database engineers and other teams

Technical Leadership & Delivery
- Lead implementation of selected features and initiatives
- Drive pragmatic improvements in system design, reliability, and maintainability
- Contribute to architectural decisions with focus on practical solutions
- Support end-to-end delivery — design, implementation, testing, and operation
- Collaborate with product owners and other teams to refine priorities
- Apply agile practices to deliver incremental improvements
- Stay actively involved in implementation to keep decisions grounded in reality

Requirements

Minimum Qualifications
- Strong experience with Java and backend development
- Experience building and maintaining RESTful services
- Experience working with large, complex codebases
- Proven ability to perform incremental refactoring and modernization
- Solid understanding of software engineering fundamentals and clean code practices
- Experience with CI/CD, Git, and Docker
- Strong problem-solving skills and attention to detail
- Good communication skills and ability to collaborate across teams
- Professional proficiency in English

Preferred Qualifications
- Experience with Spring Boot or modernizing legacy Java applications
- Experience with PostgreSQL and/or Oracle
- Understanding of distributed systems challenges (failures, retries, idempotency)
- Experience with cloud platforms (Azure preferred)
- Familiarity with observability, monitoring, and production troubleshooting
- Experience with asynchronous patterns (messaging, background processing)

What we are looking for
- Someone comfortable improving existing systems step by step
- Ability to balance technical quality with business needs
- A pragmatic mindset — choosing the right level of solution
- Ownership and accountability for delivered work

Nice to Have Skills

n/a

How to apply
In case of your interest to apply for this position, please, send us your curriculum vitae in English language on tomas.simander@sourcefirstinternational.com .
Mission statement

Our mission is to offer variety of matching jobs to qualified candidates and fulfil our client recruitment and project needs. We have decided to operate and source in Eastern European countries.

Contact us

Klariská 14, 811 03 Bratislava, Slovakia
Lidická 700/19, 602 00 Brno, Czech Republic

www.sourcefirstinternational.com jobs@sourcefirstinternational.com Phone: +421 903 427089
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